Abstract
The competition between thermal excitations and rotational degrees of freedom and their influence on the pairing correlations are studied within the framework of an exactly soluble model. The model is based on anSU2×SU2 representation and it proved to be able to reproduce the collapse of the pairing correlations as a result of both the rotational alignment and the thermal blocking. The validity of the BCS approximation, as a function of the temperature and the rotational frequency is discussed.
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On leave from: Department of Physics, University of La Plata and CONICET, Argentina
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Civitarese, O., Plastino, A. & Faessler, A. Pairing effects at finite temperature and finite rotational frequencies: An exactly soluble model. Z Physik A 313, 197–206 (1983). https://doi.org/10.1007/BF01417227
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DOI: https://doi.org/10.1007/BF01417227